The Doobie Brothers are an American rock band formed in San Jose, California in 1970. Known for their flexibility in performing across numerous genres and their vocal harmonies, the band has been active for over five decades, with their greatest success taking place in the 1970s.
Pine Knob Music Theatre (formerly DTE Energy Music Theatre) is an outdoor amphitheater located in Independence Township, Michigan, approximately 40 miles (64 km) northwest of Detroit. Built by the Nederlander Organization in the early 1970s, it is known as “Pine Knob Music Theatre” due to its proximity to the nearby Pine Knob ski area and golf course.